﻿// Copyright 2004-2011 Castle Project - http://www.castleproject.org/
// 
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// 
//     http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#region 导入名称空间

using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Security.Permissions;

#endregion

namespace LightWork.DynamicProxy.Generators
{
    public static class AttributesToAvoidReplicating
    {
        private static readonly IList<Type> attributes = new List<Type>();

        static AttributesToAvoidReplicating()
        {
            Add<ComImportAttribute>();
#if !SILVERLIGHT
            Add<SecurityPermissionAttribute>();
#endif
#if DOTNET40
            Add<TypeIdentifierAttribute>();
#endif
        }

        public static void Add(Type attribute)
        {
            if (attributes.Contains(attribute) == false)
                attributes.Add(attribute);
        }

        public static void Add<T>()
        {
            Add(typeof(T));
        }

        public static bool Contains(Type type)
        {
            return attributes.Contains(type);
        }
    }
}